Buoyant travel demand has raised net profits at Singapore Airlines (SIA) by 73.2 percent in the three months to September compared with the same period a year ago, the airline said Wednesday.

But despite the second quarter figures, Singapore Airlines (SIA), which is the first carrier to commercially operate the Airbus A380 superjumbo, said slowing economic growth had cast a cloud over prospects.

Net profit totalled 507.8 million Singapore dollars (350.66 million US), up from 293.2 million dollars a year ago, the company said in a statement to the stock exchange.